Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Portland to Ireland from $276

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Ireland departing on 8/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Portland to Ireland

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
3:30 pm - 1:15 pm
PDX
-
DUB
13h 45m
1 stop
Icelandair Logo
12:15 pm - 5:55 pm
DUB
-
PDX
13h 40m
1 stop
$587Icelandair
Mon, Oct 5 - Fri, Oct 16
Icelandair Logo
3:30 pm - 11:05 am
PDX
-
DUB
11h 35m
1 stop
Icelandair Logo
2:15 pm - 5:55 pm
DUB
-
PDX
11h 40m
1 stop
$601Icelandair
Sat, Sep 19 - Tue, Sep 29
Icelandair Logo
3:30 pm - 1:15 pm
PDX
-
DUB
13h 45m
1 stop
Icelandair Logo
12:15 pm - 5:55 pm
DUB
-
PDX
13h 40m
1 stop
$641Icelandair
Wed, Sep 23 - Wed, Sep 30
KLM Logo
7:00 am - 10:40 am
PDX
-
ORK
19h 40m
2 stops
KLM Logo
5:45 am - 11:20 am
ORK
-
PDX
13h 35m
1 stop
$759KLM
Tue, Nov 10 - Wed, Nov 18
KLM Logo
6:15 am - 10:40 am
PDX
-
ORK
20h 25m
2 stops
KLM Logo
5:45 am - 11:20 am
ORK
-
PDX
13h 35m
1 stop
$760KLM
Tue, Nov 10 - Wed, Nov 18
Lufthansa Logo
11:02 pm - 7:30 am
PDX
-
SNN
24h 28m
1 stop
Lufthansa Logo
12:30 pm - 10:03 pm
SNN
-
PDX
17h 33m
1 stop
$802Lufthansa
Sat, Sep 5 - Sat, Sep 19
United Airlines Logo
11:02 pm - 10:15 am
PDX
-
SNN
27h 13m
2 stops
United Airlines Logo
9:30 am - 5:49 pm
SNN
-
PDX
16h 19m
2 stops
$808United Airlines
Sat, Sep 5 - Sat, Sep 19
Delta Logo
7:01 am - 11:10 am
PDX
-
SNN
20h 09m
1 stop
Delta Logo
1:05 pm - 9:13 pm
SNN
-
PDX
16h 08m
1 stop
$847Delta
Sun, Jul 5 - Tue, Jul 21
Delta Logo
10:40 pm - 11:10 am
PDX
-
SNN
28h 30m
1 stop
Delta Logo
1:05 pm - 9:13 pm
SNN
-
PDX
16h 08m
1 stop
$853Delta
Tue, Jul 7 - Fri, Jul 31
United Airlines Logo
11:59 pm - 7:30 am
PDX
-
SNN
23h 31m
2 stops
United Airlines Logo
9:30 am - 10:48 pm
SNN
-
PDX
21h 18m
2 stops
$912United Airlines
Wed, Jul 8 - Wed, Jul 22

Air Canada flights from Portland to Ireland

Our best Air Canada deals on Portland to Ireland flight tickets
Air Canada
Sep 7
PDX3:30 pmPortland
32h 15m
1 stop
DUB7:45 amDublin
Sep 17
DUB9:50 amDublin
33h 38m
2 stops
PDX11:28 amPortland
$734
Air Canada
Oct 12
PDX7:45 pmPortland
28h 00m
1 stop
DUB7:45 amDublin
Oct 20
DUB9:50 amDublin
33h 43m
2 stops
PDX11:33 amPortland
$737
Air Canada
Sep 8
PDX3:30 pmPortland
32h 15m
2 stops
DUB7:45 amDublin
Sep 18
DUB9:20 amDublin
34h 08m
2 stops
PDX11:28 amPortland
$738

British Airways flights from Portland to Ireland

Our best British Airways deals on Portland to Ireland flight tickets
British Airways
Oct 26
PDX3:48 pmPortland
20h 37m
2 stops
SNN7:25 pmShannon
Nov 5
SNN7:50 amShannon
22h 55m
2 stops
PDX10:45 pmPortland
$951
British Airways
Nov 8
PDX5:45 pmPortland
13h 40m
1 stop
ORK3:25 pmCork
Nov 12
ORK5:35 pmCork
30h 20m
1 stop
PDX3:55 pmPortland
$969
British Airways
Jun 9
PDX7:30 pmPortland
15h 20m
1 stop
DUB6:50 pmDublin
Apr 15
DUB8:35 amDublin
17h 05m
1 stop
PDX5:40 pmPortland
$979

momondo Fare Finder

 
Customize your flight search to find flights from Portland to Ireland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated May 30, 2026.
Use the filters below to find and compare flights from Portland to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandDublin

PDX - DUB

PDXDUB

Portland

Mon 10/5

3:30 pm-1:15 pm

1 stop13h 45m

Dublin

Fri 10/16

12:15 pm-5:55 pm

1 stop13h 40m

$587
Quickest round-trip

PortlandDublin

PDX - DUB

PDXDUB

Portland

Sat 9/19

3:30 pm-11:05 am

1 stop11h 35m

Dublin

Tue 9/29

2:15 pm-5:55 pm

1 stop11h 40m

$601

PortlandDublin

PDX - DUB

PDXDUB

Portland

Wed 9/23

3:30 pm-1:15 pm

1 stop13h 45m

Dublin

Wed 9/30

12:15 pm-5:55 pm

1 stop13h 40m

$641

PortlandCork

PDX - ORK

PDXORK

Portland

Tue 11/10

7:00 am-10:40 am

2 stops19h 40m

Cork

Wed 11/18

5:45 am-11:20 am

1 stop13h 35m

$759

PortlandCork

PDX - ORK

PDXORK

Portland

Tue 11/10

6:15 am-10:40 am

2 stops20h 25m

Cork

Wed 11/18

5:45 am-11:20 am

1 stop13h 35m

$760

PortlandShannon

PDX - SNN

PDXSNN

Portland

Sat 9/5

11:02 pm-7:30 am

1 stop24h 28m

Shannon

Sat 9/19

12:30 pm-10:03 pm

1 stop17h 33m

$802

PortlandShannon

PDX - SNN

PDXSNN

Portland

Sat 9/5

11:02 pm-10:15 am

2 stops27h 13m

Shannon

Sat 9/19

9:30 am-5:49 pm

2 stops16h 19m

$808

PortlandShannon

PDX - SNN

PDXSNN

Portland

Sun 7/5

7:01 am-11:10 am

1 stop20h 09m

Shannon

Tue 7/21

1:05 pm-9:13 pm

1 stop16h 08m

$847

PortlandShannon

PDX - SNN

PDXSNN

Portland

Tue 7/7

10:40 pm-11:10 am

1 stop28h 30m

Shannon

Fri 7/31

1:05 pm-9:13 pm

1 stop16h 08m

$853

PortlandShannon

PDX - SNN

PDXSNN

Portland

Wed 7/8

11:59 pm-7:30 am

2 stops23h 31m

Shannon

Wed 7/22

9:30 am-10:48 pm

2 stops21h 18m

$912

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Ireland from

How to get the cheapest flight ticket from Portland to Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Ireland?

In general, August is the cheapest month to fly from Portland to Ireland. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $276. If you aren’t able to travel to Ireland during the month of August, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $334.

How far in advance should I book a flight from Portland to Ireland?

You are more likely to see cheaper flights to Ireland from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around $608 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Portland for as low as $519 on momondo.

Can stopping save me money on Portland to Ireland flights?

You could potentially save up to 4% on your flight if you consider stops on a Portland to Ireland flight.

Cheap Portland to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Ireland

Fastest flight time

11h 30m

Direct flights

None
The fastest flight from Portland to Ireland takes 11h 30m
There are no direct flights from Portland to Ireland. There are no popular flight routes from Portland to Ireland.
Search flight deals

Frequently asked questions about flying from Portland to Ireland

  • When did momondo last update prices for flights from Portland Airport to Ireland?

    Prices for flights from Portland Airport to Ireland are refreshed on a daily basis.

  • How many operators does momondo search for flights from Portland Airport to Ireland?

  • How old do you have to be to fly from Portland Airport to Ireland?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Ireland.

  • What documentation or ID do you need to fly to Ireland?

    The travel and health documents you'll need for your trip to Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Portland to Ireland

Compare and see reviews for airlines that fly from Portland to Ireland with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $352Free CancellationRating
7.0
661 reviews
Search Icelandair flights
IberiaPriceFrom $437Free CancellationRating
7.0
3,221 reviews
Search Iberia flights
British AirwaysPriceFrom $459Free CancellationRating
6.7
8,013 reviews
Search British Airways flights
United AirlinesPriceFrom $461Free CancellationRating
7.4
9,768 reviews
Search United Airlines flights
Air CanadaPriceFrom $462Free CancellationRating
7.1
11,107 reviews
Search Air Canada flights
American AirlinesPriceFrom $466Free CancellationRating
7.1
11,641 reviews
Search American Airlines flights
DeltaPriceFrom $468Free CancellationRating
7.9
8,414 reviews
Search Delta flights
KLMPriceFrom $468Free CancellationRating
7.8
1,524 reviews
Search KLM flights
LufthansaPriceFrom $477Free CancellationRating
6.8
8,032 reviews
Search Lufthansa flights

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Ireland?

It is quick and easy to find Portland to Ireland flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ireland that suits you.

Can I find flights from Portland to Ireland with flexible booking policies on momondo?

Flights from Portland to Ireland with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Portland to Ireland?

Once all potential Portland to Ireland flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Portland to Ireland right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Portland to Ireland flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Ireland trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 6/29
Mon 7/6
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Ireland

Popular cities in Ireland

Popular flights according to clicks in the last 7 days on momondo
Flights to Dublinfrom $322
Flights to Shannon, Clarefrom $591
Flights to Corkfrom $653
Flights to Knockfrom $657
Flights to Milltown (Kerry)from $682
Flights to Donegalfrom $954